52145102 has 4 divisors (see below), whose sum is σ = 78217656. Its totient is φ = 26072550.

The previous prime is 52145053. The next prime is 52145129. The reversal of 52145102 is 20154125.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×52145102² = 5438223325180808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13036274 + ... + 13036277.

It is an arithmetic number, because the mean of its divisors is an integer number (19554414).

Almost surely, 2^52145102 is an apocalyptic number.

52145102 is a deficient number, since it is larger than the sum of its proper divisors (26072554).

52145102 is a wasteful number, since it uses less digits than its factorization.

52145102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26072553.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 52145102 is about 7221.1565555664. The cubic root of 52145102 is about 373.5979694342.

Adding to 52145102 its reverse (20154125), we get a palindrome (72299227).

The spelling of 52145102 in words is "fifty-two million, one hundred forty-five thousand, one hundred two".